Knee Surg Relat Res  
A Report of Two Cases of Adventitial Cystic Disease of the Popliteal Artery
Doo Jae Lee, MD1, Hyun Oh Park, MD2, Ha Nee Jang, MD3, Ki Nyun Kim, MD2, Jun Ho Yang, MD4, Seong Ho Moon, MD2, Joung Hun Byun, MD2, Sung Hwan Kim, MD2, Jun Young Choi, MD4, In Seok Jang, MD4, Jong Woo Kim, MD2, and Chung Eun Lee, MD2
1Division of Foot and Ankle, Department of Orthopedic Surgery, Seoul National University Hospital, Seoul; 2Department of Thoracic and Cardiovascular Surgery, Gyeongsang National University Changwon Hospital, Gyeongsang National University College of Medicine, Changwon; 3Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University College of Medicine, Jinju; 4Department of Thoracic and Cardiovascular Surgery, Gyeongsang National University Hospital, Gyeongsang National University College of Medicine, Jinju, Korea
Correspondence to: Chung Eun Lee, MD
Department of Thoracic and Cardiovascular Surgery, Institute of Health Science, Gyeongsang National University Hospital, 79 Gangnam-ro, Jinju 52727, Korea
Tel: +82-55-750-8124, Fax: +82-55-753-8138
E-mail: ilikerem@hanmail.net
Received: July 28, 2017; Revised: October 6, 2017; Accepted: October 7, 2017; Published online: April 30, 2018.
© Korean Knee Society. All rights reserved.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Two patients were admitted to our department because of recent aggravation of claudication in the leg, which was exacerbated by walking. They were diagnosed as having a Baker cyst or acute thrombosis in the popliteal fossa at another hospital. There was no evidence of ischemia, and the ankle brachial index was normal. Computed tomography and magnetic resonance imaging were performed, revealing a cystic mass of the popliteal artery (PA). Intraoperatively, the cystic lesion was found within the adventitia of the PA; based on the biopsy findings, both patients were diagnosed as having adventitial cystic disease of the PA.
Keywords: Popliteal artery, Adventitia, Cyst


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